/Engine/Source/Editor/MovieSceneTools/Public/MovieSceneEventUtils.h
Create the necessary mapping between a director Blueprint and and event section in order for the event section to be compiled correctly.
static void BindEventSectionToBlueprint ( [UMovieSceneEventSectionBase](API\Runtime\MovieSceneTracks\Sections\UMovieSceneEventSectionBase) * EventSection, [UBlueprint](API\Runtime\Engine\Engine\UBlueprint) * DirectorBP )